S. Mthembu, L. G. Madeley, C. D. de Koning
Jul 18, 2012
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title compound, C14H16N2O3, is an NH-vinylogous amide (enaminone) produced by the reaction of 4-nitrophenacyl bromide with azepane-2-thione. The conformation about the C=C bond [1.3927 (14) Å] is Z, which allows for the formation of an intramolecular N—H⋯O hydrogen bond that leads to an S(6) loop. Inversion-related molecules associate via N—H⋯O hydrogen bonds to form a 12-membered {⋯OC3NH}2 synthon.